Huawei SUN2000 Series User manual

SUN2000-(12KTL, 15KTL, 17KTL, 20KTL)-M0
Quick Guide
HUAWEI TECHNOLOGIES CO., LTD.
Issue: 05
Part Number: 31509519
Date: 2019-10-28

1
1Product Description
Copyright © Huawei Technologies Co., Ltd. 2019. All
rights reserved.
(1) LED
(2) Front panel
(3) Hanging kit
(4) Heat sink
(5) Ventilation valve
(6) Ground screw
(7) AC output port (AC)
(8) Communications port (COM)
(9) Smart Dongle port (
GPRS/4G/WLAN-
FE
)
(10) DC input terminals (PV4+/PV4
–)
(11) DC input terminals (PV3+/PV3
–)
(12) DC input terminals (PV2+/PV2
–)
(13) DC input terminals (PV1+/PV1
–)
(14) DC switch (DC SWITCH)
2. Before installing the device, read the user manual carefully to get familiar with product
information and safety precautions.
3. Only qualified and trained electrical technicians are allowed to operate the device. Operation
personnel should understand the composition and working principles of the grid-tied PV power
system and local regulations.
4. Before installing the device, check that the package contents are intact and complete against
the packing list. If any damage is found or any component is missing, contact your dealer.
5. Use insulating tools when installing the device. For personal safety, wear proper personal
protective equipment (PPE).
6. Huawei shall not be liable for any consequences caused by the violation of the storage,
transportation, installation, and operation regulations specified in this document and the user
manual.
1. The information in this document is subject to change due to
version upgrades or other reasons. Every effort has been made in
the preparation of this document to ensure accuracy of the
contents, but all statements, information, and recommendations in
this document do not constitute a warranty of any kind, express or
implied. You can download this document by scanning the QR code.

2
Installation Requirements
2.1
Tilt and Space
Dimensions
2Installing the Equipment
Moving an Inverter
Two M6 screw holes are reserved on both left and right sides of the inverter for installing an awning.

3
Installing the Inverter
2.2
When drilling holes, avoid the water pipes and power cables buried in the wall.
1. Install the mounting bracket.
•M6x60 expansion bolts are delivered with the inverter. If the length and number of the bolts do
not meet installation requirements, prepare M6 stainless steel expansion bolts by yourself.
•The expansion bolts delivered with the inverter are used for solid concrete walls. For other types
of walls, prepare bolts by yourself and ensure that the wall meets the load bearing requirements
of the inverter.
•Loosen the nuts, flat washers, and spring washers of the two expansion bolts.
Prepare an anti-theft lock suitable for the lock hole diameter (Ф8 mm) and ensure that the lock can
be installed successfully. An outdoor waterproof lock is recommended.
2. Install the inverter on the mounting bracket. 3. (Optional) Install an anti-
theft lock.
Preparing for Installation
3.1
3Electrical Connections

4
No.
Item
Type
Specifications
1
PE cable
Single
-core outdoor
copper cable
Conductor cross
-sectional area:
•
≥ 6 mm2(SUN2000-12KTL-M0)
•
≥ 10 mm2(SUN2000-15KTL-M0/SUN2000-
17KTL-M0/SUN2000-20KTL-M0)
2
AC output power
cable
Outdoor copper cable
Conductor cross
-sectional area:
•
6–16 mm2(SUN2000-12KTL-M0)
•
10–16 mm2(SUN2000-15KTL-M0/SUN2000-
17KTL-M0/SUN2000-20KTL-M0)
Cable outer diameter: 11
–26 mm
3
DC input power
cable
Standard outdoor PV
cable in the industry
(recommended model:
PV1
-F)
•
Conductor cross-sectional area: 4–6 mm2
•
Cable outer diameter: 4.5–7.8 mm
4
(Optional) RS485
communications
cable
Two
-core outdoor
shielded twisted pair
cable
•
Conductor cross-sectional area: 0.2–1 mm2
(0.5 mm2is recommended)
•
Cable outer diameter: 4–11 mm
5
(Optional) RS485
p
ower meter
signal cable
Two
-core outdoor
shielded twisted pair
cable
6
(Optional)
Grid
scheduling signal
cable
Five
-core outdoor
cable
Installing the PE Cable
3.2
•Connect cables in accordance with the local installation laws and regulations.
•Before connecting cables, ensure that the DC switch on the inverter and all the switches
connecting to the inverter are set to OFF. Otherwise, the high voltage of the inverter may result
in electric shocks.
Do not connect the neutral wire to the enclosure as a PE cable. Otherwise, electric shocks may occur.
•The PE point at the AC output port
is used only as a PE equipotential
point, and cannot substitute for
the PE point on the enclosure.
•It is recommended that silica gel
or paint be used around the
ground terminal after the PE cable
is connected.

Click
5
Installing the AC Output Power Cable
3.3
•Ensure that the protection layer of the AC output power cable is inside the connector, the core
wires are totally inserted into the cable hole, and the cable is connected securely. Failing to do
so may cause device malfunction or damage.
•The hex key is delivered with the inverter and bound to the hanging kit at the bottom of the
inverter.
1. Connect the AC output power cable to the AC connector.
Three-Core Cable (L1, L2, and L3)
Hanging kit
Hex key

Click
Click
Four-Core Cable (L1, L2, L3, and N)
Four-Core Cable (L1, L2, L3, and PE)
6
Five-Core Cable (L1, L2, L3, N, and PE)
Click

2. Connect the AC connector to the AC output port.
AC output port (AC)
7
Installing the DC Input Power Cable
3.4
3. Check the route of the AC output power cable.
1. Use the Amphenol Helios H4 PV connectors supplied with the inverter. If the PV connectors are
lost or damaged, purchase the connectors of the same model. The device damage caused by
incompatible PV connectors is not covered under any warranty.
2. Crimp the metal stamping forming contacts using crimping tool H4TC0003 (Amphenol,
recommended) or H4TC0002 (Amphenol).
3. Ensure that the PV module output is well insulated to ground.
4. The DC input voltage of the inverter shall not exceed 1080 V DC under any circumstance.
5. Before installing the DC input power cable, label the cable polarities to ensure correct cable
connections.
6. If the DC input power cable is reversely connected, do not operate the DC switch as well as
positive and negative connectors immediately. Failing to do so may cause device damage, which
is not covered under any warranty. Wait until the night when solar irradiance declines and the PV
string current drops to below 0.5 A. Then set the DC switch to the OFF position, remove the
positive and negative connectors, and correct the polarities of the DC input power cable.

8
(Optional) Installing the Smart Dongle
3.5
Pull back the DC input power cable to
ensure that it is in position.
DC input terminals
Click
•If you prepared a Smart Dongle without a SIM card, you need to prepare a standard SIM card (size:
25 mm x 15 mm) with the capacity greater than or equal to 64 KB.
•When installing the SIM card, determine its installation direction based on the silk screen and arrow
on the card slot.
•Press the SIM card in place to lock it, indicating that the SIM card is correctly installed.
•When removing the SIM card, push it inwards to eject it.
nindicates 1, 2, 3, or 4.
Positive connector
Negative
connector
Positive metal
terminal
Negative metal terminal
Ensure that the cable
cannot be pulled out
after being crimped.
Ensure that the locking nut
is secured.
Ensure that the cables are
correctly connected. (The DC
voltage of a multimeter should
not be less than 1100 V).
Click

Inverter
USB port
9
Smart Dongle port
(GPRS/4G/WLAN-FE)
When reinstalling the cover of the Smart Dongle,
ensure that the buckle springs back in place.
4G Smart Dongle
WLAN-FE Smart Dongle (WLAN Communication)
WLAN-FE Smart Dongle (FE Communication)
You are advised to use a CAT 5E outdoor shielded network cable (outer diameter < 9 mm; internal
resistance ≤ 1.5 Ω/10 m) and shielded RJ45 connectors.

10
(Optional) Installing the Signal Cable
3.6
There are two types of Smart Dongle involved in this document:
•WLAN-FE Smart Dongle: SDongleA-05
•4G Smart Dongle: SDongleA-03
For details, see the quick guide that is delivered with the Smart Dongle. You can scan the QR code
to obtain it.
•Not all inverter models are delivered with the
signal cable connector.
•When laying out the signal cable, separate it
from the power cable and keep it away from
strong interference sources to avoid strong
communication interference.
•Ensure that the protection layer of the cable is
inside the connector, surplus core wires are
cut off from the protection layer, the exposed
core wire is totally inserted into the cable hole,
and that the cable is connected securely.
•If the Smart Dongle is configured, you are
advised to install the Smart Dongle before
connecting the signal cable.
Communications Port Pin Definition
Pin
Definition
Function
Description
Pin
Definition
Function
Description
1
485A1
-1
RS485
differential
signal+
Used to cascade
inverters or connect
to the RS485 signal
port on the
SmartLogger1000A
2
485A1
-2
RS485
differential
signal+
Used to cascade
inverters
or
connect to the
RS485 signal port
on the
SmartLogger1000A
3
485B1
-1
RS485
differential
signal
–
4
485B1
-2
RS485
differential
signal
–
5
PE
Shielding
ground
N/A
6
PE
Shielding
ground
N/A
7
485A2
RS485
differential
signal+
Used to connect to
an RS485 signal
port on a Smart
Power Sensor for
export limitation
8
DIN1
Dry
contact
interface
for grid
scheduling
Connect to
ripple
control receiver.
For details, see the
user manual.
9
485B2
RS485
differential
signal
–
10
DIN2
11
N/A
N/A
N/A
12
DIN3
13
GND
GND
N/A
14
DIN4
15
N/A
N/A
N/A
16
GND
WLAN-FE 4G

11
•In the SmartLogger1000A networking scenario, the Smart Dongle cannot be connected.
•A maximum of 80 devices can connect to a single SmartLogger1000A, such as inverters, Smart
Power sensor, and EMI. You are advised to connect fewer than 30 devices to each RS485 route.
•The Smart Power Sensor is necessary for export limitation. Select the Smart Power Sensor
according to the actual project.
•To ensure the system response speed, the Smart Power Sensor is recommended to be
connected to a COM port separately from inverter COM port.
Smart Dongle Networking Scenario
•In the Smart Dongle networking scenario, the SmartLogger1000A cannot be connected.
•The Smart Power Sensor is necessary for export limitation. Only the DTSU666-H Smart Power
Sensor (provided by Huawei) can be used.
SmartLogger1000A Networking Scenario

12
1. Connect the signal cable to the signal cable connector.
(Optional) Installing the RS485 Communications Cable (Inverter Cascading)
2. Connect the signal cable connector to the communication port.
Communications port (COM)

13
(Optional) Installing the Smart Power Sensor Signal Cable
1. Connect the signal cable to the signal cable connector.
2. Connect the signal cable connector to the Communication port.
Communications port (COM)

14
1. Connect the signal cable to the signal cable connector.
(Optional) Installing the Grid Scheduling Dry Contact Signal Cable
2. Connect the signal cable connector to the Communication port.
Communications port (COM)

15
No.
Acceptance Criteria
1
The inverter is installed correctly and securely.
2
Cables are routed properly as required by the customer.
3
The Smart Dongle is installed correctly and securely.
4
Cable ties are evenly distributed and no burr exists.
5
The PE cable is connected correctly, securely, and reliably.
6
The DC switch and all the switches connected to the inverter are set to the OFF position.
7
The AC output power cable, DC input power cable, and signal cable are connected
correctly, securely, and reliably.
8
Unused terminals and ports are locked by watertight caps.
9
The installation space is proper, and the installation environment is clean and tidy.
4Verifying Installation
1. Turn on the AC switch between the inverter and the power grid.
2. If there is a DC switch between the PV string and the inverter, turn on the DC switch.
3. Turn on the DC switch at the bottom of the inverter.
4. Observe the LEDs to check the operating status of the inverter.
Before turning on the AC switch between the inverter and the power grid, use a multimeter set to
the AC position to check that the AC voltage is within the specified range.
5Powering On the System
Blinking at Long Intervals: On for 1s and then Off for 1s; Blinking at Short Intervals: On for 0.2s
and then Off for 0.2s.

16
Category
Status
Meaning
Running
indicator
N/A
Steady green
Steady green
The inverter is operating in grid
-tied mode.
Blinking
green at long
intervals
Off
The DC is on and the AC is off.
Blinking
green at long
intervals
Blinking green
at long intervals
Both the DC and AC are on, and the inverter is
not exporting power to the power grid.
Off
Off
The DC is off, and the AC may be energized
(Ensure that the external AC switch is OFF).
Blinking red
at short
intervals
N/A
DC environmental alarm
N/A
Blinking red at
short intervals
AC environmental alarm
Steady red
Steady red
Abnormal
Communication
indicator
N/A
Blinking green at short intervals
Communication is in progress. (When a mobile
phone is connected to the inverter, the indicator
first blinks green at long intervals, indicating
that the phone is connected to the inverter.)
Blinking green at long intervals
The mobile phone is connected to the inverter.
Off
There is no communication.
5. (Optional) Observe the LED to check the operating status of the Smart Dongle.
LED
LED
Description
Color
Status
Yellow (blinking
green and red
simultaneously)
Steady on
The Dongle is secured and
powered on.
Red
Blinking at short
intervals (on for 0.2s
and then off for 0.2s)
The parameters for connecting
to the router are to be set.
Green
Blinking at long
intervals (on for 0.5s
and then off for 0.5s)
Connecting to the router
Green
Steady on
Successfully connected to the
management system.
Green
Blinking at short
intervals (on for 0.2s
and then off for 0.2s)
The inverter is communicating
with the management system
through the Dongle.
WLAN-FE Smart Dongle

LED
17
LED
Description
Color
Status
Yellow (blinking
green and red
simultaneously)
Steady on
The Dongle is secured and
powered on.
Green
Blinking in a 2
-second
cycle (on for 0.1s and then
off for 1.9s)
Dialing (duration < 1 min)
Blinking at long intervals
(on for 1s and then off for
1s)
The dial
-
up connection is set
up successfully (duration <
30s).
Steady on
Successfully connected to
the management system.
Blinking at short intervals
(on for 0.2s and then off for
0.2s)
The inverter is
communicating with the
management system
through the Dongle.
4G Smart Dongle
6Commissioning
Scenario 1: Smart Dongle Networking Scenario
6.1
1. Downloading the App
•Data in the screenshots is for
reference only. The actual
screens prevail.
•The latest Android version is
required for local
commissioning. The iOS
version is not updated and can
be used only for viewing PV
plant information. You can
search for "FusionSolar" in App
Store or scan the QR code to
download the iOS version.
Search for "FusionSolar" in Google Play or
scan the corresponding QR code, download
the latest installation package, and install the
FusionSolar app by following the instructions.
Google Play (Android)
App Store
(iOS)
Android
•In areas (such as the UK) where the FusionSolar app is not available, or when a third-party
management system is used, only the SUN2000 app can be used for commissioning. This
document uses the FusionSolar app as an example to describe the commissioning method. For
the SUN2000 app, perform operations as required.
•Search for "SUN2000" in Huawei AppGallery, download the latest installation
package, and install the SUN2000 app by following the instructions. The
SUN2000 app version should be 3.2.00.002 (Android) or later.
•The initial password for connecting the inverter WLAN is Changeme
•The initial password of the installer is 00000a
•Use the initial password upon first power-on and change it immediately after login. To ensure
account security, change the password periodically and keep the new password in mind. Not
changing the initial password may cause password disclosure. A password left unchanged for a
long period of time may be stolen or cracked. If a password is lost, devices cannot be accessed.
In these cases, the user is liable for any loss caused to the PV plant.
SUN2000 app

18
2. (Optional) Installer Account Registration
If you have an installer account, skip this step.
Creating the first installer account will generate a domain named after the company.
To create multiple installer accounts for the same company, log in to the FusionSolar app and tap
New User.

19
For details, see the FusionSolar
App Quick Guide. You can scan
the QR code to obtain it.
3. Creating a PV Plant and an Account for User
1. Access Device commissioning.
Scenario 2: SmartLogger1000A Networking Scenario
6.2
Scenario 3: FusionSolar App Cannot Access the Internet
6.3
See the Distributed PV Plants Connecting to Huawei Hosting Cloud Quick Guide
(Distributed Inverters + SmartLogger1000A + RS485 Networking).
You can scan the QR code to obtain it.